Sony TC-K6 - Electrical Adjustments

3-2, ELECTRICAL ADJUSTMENTS
Note: The adjustment should be performed in
the order given in this service manual.
The adjustments should be performed
for both L-CH and R-CH.
BIAS and EQ switch settings in accordance
with tape used are as follows.
[Tene [BIAS switch [FO awe
CS-10 NORMAL NORMAL
CS-20 HIGH CrO,z
CS-30 NORMAL Fe-Cr
Switches and controls should be set as follows
unless otherwise specified.
DOLBY NR switch: OFF
LINE OUT/HEADPHONE
LEVEL control: MAX
EQ switch: NORMAL
BIAS switch: NORMAL
MEMORY switch: OFF
REC MUTE switch: . OFF
Standard Record:
Deliver the standard input signal level to the
input jack and set the MIC REC VOL and LINE
REC VOL controls to obtain the standard
output signal level.
Standard Input Level
REC/PB
{AEP and
E model)
0.77 mV 0.25V
(-10 dB)
LINE IN
input level
Standard Output Level
VARIABLE| FIXED] jeap. | REC/PB
LINE LINE | pHones|(AEP and
OUT OUT E model)
site a 0.775V [0.44V | 95mvV | 0.775V
wtp (OdB) |(-5 dB) | (-184B)| (OdB)
TC-K6/K6B
Tape Speed Adjustment
Procedure:
Mode: Playback
speed checker
LFM-30
or
digital frequency
counter
test tape
-4
(3 kHz, OdB)
LINE OUT
(FIXED)
Specification:
Speed checker
-0.7-+0.7%
Digital frequency counter
2,980—3,020 Hz
Frequency difference between beginning and
end of tape should be within 0.7% (20 Hz).
Adjustment Location:
RV1001 servo amp board